在Jquery/Javascript中获取父ID

Question

当我点击输入文本时,如何获得Parent Div id(id ="parent")？这是我的示例HTML代码:

<div id="parent">
  <div class="child">
     <input class="form-control" />
  </div>
</div>

Answer 1

$("input.form-control").click(function(){
  
  var parentId= $(this).parent().parent().attr('id');
  alert(parentId);
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="parent">
  <div class="child">
     <input class="form-control" />
  </div>
</div>